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Alarm Handling

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the trap description, attributes, parameters, impact on the system, possible causes, procedures, and references. This document provides a complete set of traps, through which intended readers are kept of the running status of the device so as to locate faults.

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EOAM_Y1731_1. hwCfmVlanTwowayDelayRecovery

EOAM_Y1731_1. hwCfmVlanTwowayDelayRecovery


EOAM_Y1731/4/VLAN_2DM_UNDER_THRESHOLD:OID [OID] The result of two-way delay-measure is under the threshold. (MdIndex=[GAUGE], MaIndex=[GAUGE], RemoteMacAddress=[OPAQUE], Timestamp=[TIMETICK], DelayValue=[GAUGE], ThresholdValue=[GAUGE])

In the VLAN scenario where two-way frame delay measurement was configured and the expected alarm threshold was set, if the network delay fell below the set alarm threshold and a two-way frame delay alarm had been generated, a clear alarm was generated.


Alarm ID Alarm Severity Alarm Type Warning qualityOfServiceAlarm(3)


Name Meaning


Indicates the MIB object ID of the alarm.


Index of the MD where a two-way frame delay alarm is cleared


Index of the MA where a two-way frame delay alarm is cleared


Source MAC address contained in the DMR frame received by the local end from the remote end


Timestamp indicating the time when a two-way frame delay alarm is cleared


Delay when a two-way frame delay alarm is cleared.


An alarm threshold for two-way frame delay measurement

Impact on the System

Services will not be affected.

Possible Causes

The device in VLAN networking was enabled with two-way frame delay measurement and was configured with an expected alarm threshold, the network delay fell below the alarm threshold and a two-way frame delay alarm had been generated.


  • This alarm message is informational only, and no action is required.
Updated: 2019-03-06

Document ID: EDOC1100041475

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